DevCheck

DevCheck is a free application that shows information about your device, hardware and operating system. Get the pro version for real-time system monitoring and full theming support. Does not require root and there are no annoying interstitial ads. DevCheck is better organized and has more information than the older CPU-Z. DevCheck is one of the best examples of Material Design on the Play Store.

Sensors: a list of all sensors on the device, including type, manufacturer, power and resolution

PRO VERSION is available through in-app purchase
The pro version includes movable, always-on-top floating monitors. This allows you to monitor CPU frequencies, temperatures, GPU frequency and system load in real time while using other apps. The size, transparency and position of the overlay windows is completely adjustable. On Lollipop and above, the floating monitors can be docked to the statusbar,

The pro version also allows you to switch between light and dark Material Design themes and choose from nine different color schemes (amber, blue, slate grey, aqua, red, green, orange, pink and indigo)

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